Question
What causes climate control blower motor resistor "burnout" in EVs?
Answer
Overheating from excessive current and poor ventilation.
Explain
Burnout faults disable fan operation. CHEPQ tools test resistor current and ventilation—replacing the resistor and improving ventilation prevents further failure.
Related Diagnostic Guide
To explore this topic in a broader system-level diagnostic context:
Related Guide: EV/Hybrid High-Voltage System Diagnostics
Recommended Diagnostic Solutions
To apply the diagnostic concepts discussed above in real-world scenarios, explore our full range of professional automotive diagnostic tools. These solutions are designed to support battery testing, system diagnostics, and data analysis for modern vehicles and workshop environments.
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